Tank-heater and cooker.



M. A, HEMSING. I

TANK HEATER AND COOKER;

APPLICATION FILED FEB. l0. I915.

Patent ed Oct. 3,1916. 2 SHEETS-SHEET I M. A. HEMSING.

TANK HEATER AND COOKER. APPLICATION FILED rss. 10. 1915.

1,200,349. Patented 0%. 3,1916.

2 SHEETS-SHEET 2. 1 l

MINIMUM:WWWWW IL? -.i Z7]! 25 l 4 1 25 run STATES PATENT ouuron.

MAURICE A. HEMSING, OF DAVENPORT, IOWA, ASSIGNOB TO POSITIVE SUPPLY COMPANY, OF DAVENPORT, IOWA, .A-CORPORATION OF IOWA.

TANK-HEATER AND COOKER.

Application filed February 10, 1915.

Z '0 all whom it may concern Be it known that I, MAUnIonA. HEMSING, a citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented new and useful Improvements in Tank-Heaters and Cookers, of which the following is a full, clear, and exact description.

My invention relates to improvements in heaters that are particularly designed. for and utilized on farms or the like for cooking food for live-stock, also heating watertanks, and for other purposes.

The objects of my invention are to provide means for suitably supporting the food to be heated or cooked in proper position on this heater, to so construct the grate that it may be located within the body of the heater at or in the vicinity of two angular parts thereof, to so arrange means within the heater and below the grate thereof for catching the ashes that it may be removed by withdrawal up through the magazine chamber, to make provision for increasing the draft by conducting a current of air directly to and into the burning fuel, and to interrupt and impede the progress of the heated gases and products of combustion through the combustion chamber and thereby increase the heating capacity and arrest the glowing particles of burning material and sparks to prevent them passing out through the chimney. These objects I accomplish by the means hereinafter fully described, and as particularly pointed out in the claims, reference being had to the accompanying drawings forming a part thereof in which- 7 Figure 1 is a side elevation of my improvements, a portion being broken away to show a fragment of the interior thereof in central longitudinal vertical section on line 1-1 Fig. 2, to illustrate the construction and arrangement of the grate and ash pan within the heater. Fig. 2 is a top plan view of my improvements, a portion of the top wall being broken away to show the grate and ash-pan. Fig. 3-is a side elevation of another form of my improvements, the vertical side-walls being dispensed with and the body being shown cast complete in one integral piece. Fig. 4: represents an enlarged attached detail view of the hinged cover, illustrating particularly the draft slots or openings in the depending flange Specification of Letters Patent.

Patented Oct. 3, 1916.

Serial No. 7,250.

of said cover. Fig. 5 is an enlarged transverse section on line 55, Fig. 3, through the pivotal joint of one of the supporting legs. Fig. 6 is an enlarged fragment of the upper pivotal member of said leg, the pivotal bolt of which is shown in section on dotted line 6-6, Fig. 5. Fig. 7 is an enlarged detail view of one of the grate bars. Fig. 8 is a transverse vertical section through my lmprovements taken on line 88, Fig. 1, looking in the direction of'the arrows on said Fig. 1, and reduced considerably in size.

. I have shown in the accompanying drawlngs, two forms of my improvements in one of which the tubular body thereof is formed in two separated castings the flanged edges of which are suitably connected by bolts, and include parallel vertical side-walls above the heat generating chambers of the same and in the other of which the tubular body is cast complete in one integral piece without the side-walls. In both of these forms the tubular body is approximately similar, and comprises a hollow elongated angular structure having a lower substantially horizontal section 1 constituting the combustion chamber; an upwardly inclined section or fuel magazine 2 extending from one end of said combustion chamber, and a vertical discharge or pipe section 8 extending from the opposite end of the combustion chamber. That portion of the combustion chamber 1, at or in the vicinity of its angular junction with the fuel magazine 2 is, preferably, enlarged by curving or bulging the upper and lower Walls thereof to form an enlarged chamber t in which a rocking grate is located, said grate being composed ofa plurality of grate-bars 5, the curvature of the length of which is approximately similar in shape to an erolute, or, say, a sled runner, and the ends of these grate bars are connected by cross-bars 6, and the end gratebars are provided with inverted L'-shaped pivot-lugs 7 the oppositely extending horizontal portions of which are journaled in open bearings cast integral with the sidewalls of the body. It will be noted that the slots 8 are narrower than the curved seats of the bearings and the lugs are flattened at one side, as shown at 10 to permit their introduction through said slots when the grate is in one position. The grate is locked in its normally horizontal position, by the non.-

registration of said flattened portions with said slots.

To catch the ashes, an ash-pan 11 the bottom of which is shaped substantially similar to the curved lower wall of chamber 4: upon which it is adapted to rest is introduced into said chamber 4: by means of a handle 12 which is connected at its lower end to the upper edge of the ash-pan by a suitable knuckle or pivot-joint 13. I prefer to make this handle of an inverted channelshape in cross section to provide a draft-passage 11 between it and the bottom wall of the fuel magazine and make suitably separated apertures or openings 15 therein to permit the draft to pass from passage 14- into the fuel magazine within the fuel magazine and upon the grate, as illustrated by arrows in Fig. 1.

The entrance to the fuel magazine is adapted to be closed or partially closed by a cover 16 which is pivoted at one side of the transverse edge of the top of the magazine by hinges 17. The edge of this cover opposite its hinges is provided with a depending fiange 18 that has a series of vertical draft slots 19 formed therein, and an arm 20 depends from the center of this last mentioned edge of the cover and has one edge thereof suitably serrated or provided with a plurality of laterally projecting teeth 21 that are adapted to engage the top edge of the bottom of the magazine and hold said cover in one of several partially closed positions.

The top wall of the combustion chamber is transversely corrugated, as shown at 22, to provide more heating surface, and a series of transversely disposed vertical fins or baffle-plates 23 depending from said corrugations intercept the egress of the heated gases through the combustion chamber and thereby increase the transmission of the heat to said top.

To arrest the sparks and glowing particles of fuel I arrange a vertical transverse partition 24 within the combustion chamber at or near the juncture of the combustion chamber and the discharge pipe thereof and extend said partition a short distance lower than the fins or plates 23, as shown in Fig. 1.

The body of the heater is supported in an elevated position by legs 25 which are, preferably, suitably pivoted to the bottom of said body by transverse bolts 26 fitted through the upper terminals of said legs and lugs 27 depending from the body, as shown in Fig. 5, and to provide for securely holding said legs at any position to which they may be adjusted; the opposed surface of the legs and lugs are radially grooved or serrated, as shown at 28 in Fig. 6.

WVater" tanks or troughs, particularly those used on farms, are of all sorts and sizes and the depth of the water in them va- I'ies greatly. It is considered advisable to make the legs of the heater adjustable so as to enable them to be raised high enough, when used in a tank, to bring the mouth of the magazine and the chimney above the surface of the water, or to tilt one end higher than the other end and to accomplish this result where the bottom of the tank is inclined lengthwise or tipped sidewise, or to tilt one end so that in conjunction with the cover 16, a better draft and better combustion may be obtained.

In the form of my invention shown in Figs. 1 and 2, the heater above the combustion chamber is provided with two longitudinal vertical side walls 29 which are, preferably, cast integral with the body and extend parallel to each other from the magazine to the opposite end of the heater and then converge toward and merge in the side of said plate and inclose the sides of the space above the combustion chamber and form a trough like heating and cooking receptacle in which, for instance, water may be heated, food cooked or utensils containing food for live-stock may be heated or washed.

For some purposes, such, for instance, as a submerged heater for water tanks, the form shown in Fig. 8 in which the parallel side walls 29 are omitted or eliminated, can be utilized, and is, perhaps, the preferable form.

WVhat I claim as new is:

1. A heater comprising a trough-like receptacle, a horizontal combustion chamber located beneath the trough-like receptacle, an oblique fuel magazine communicating at its lower end with one end of the combustion chamber, an enlarged bulged portion at the juncture of the fuel magazine and the combustion chamber, and a grate removably fitted in the enlarged bulged portion.

2. A heater comprising a trough-like receptacle, a horizontal combustion chamber located beneath the trough-like receptacle, an oblique fuel magazine communicating at its lower end with one end of the combustion chamber, an enlarged bulged portion at the juncture of the fuel magazine and the combustion chamber, a centrally located grate support in said bulged out portion, and a rocking grate removably mounted on said support.

8. A heater having a horizontal combustion chamber, a fuel magazine extending upward from one end of said combustion chamber, a bulged portion at the juncture of the combustion chamber and the fuel magazine, a rocking-grate removably mounted in said bulged portion, and an ash-pan normally disposed beneath the grate and adapted to be removed from and returned to its position through the fuel magazine.

4. A heater having a horizontal combustion chamber, a fuel magazine extending upward from one end of said combustion chamber, a bulged portion at the juncture of the combustion chamber and the fuel magazine, a rocking-grate removably mounted in said bulged portion, and an ash-pan normally disposed beneath the grate and adapted to be removed from and returned to its position through the fuel magazine; said ashpan substantially conforming to and fitting upon the upper surface of the bulged portion.

5. A heater having a horizontal combustion chamber, a fuel magazine extending upward from one end of said combustion chamber, a bulged portion at the juncture of the combustion chamber and the fuel magazine, a rocking-grate removably mounted in said bulged portion, an ash pan normally disposed beneath the grate upon the lower bulged surface and adapted to be removed from and returned to its position through the fuel magazine, and a handle extending from the ash pan and normally disposed against the interior of the fuel magazine with its upper extremity near the top mouth thereof.

6. A heater having a. horizontal combustion chamber, a fuel magazine extending upward from one end of said combustion chamber, a bulged portion at the juncture of the combustion chamber and the fuel magazine, a rocking-grat removably mounted in said bulged portion, an ash pan normally disposed beneath the grate upon the lower bulged surface and adapted to be removed from and returned to its position through the fuel magazine, and a handle extending from the ash pan and normally disposed against the interior of the fuel magazine with its upper extremity near the top mouth thereof; said handle being of channel form in cross-section and being adapted to normally form an air conducting passage-way in conjunction with the inner wall of the fuel magazine against which it contacts.

7 A heater having a fuel magazine and a combustion chamber, a rocking grate having stationary bearings in the vicinity of the juncture of the fuel magazine and combustion chamber, a removable ash-pan normally disposed beneath the grate, and an inverted channel shaped handle pivoted thereto and extending through the fuel magazine and constituting an air conducting means for supplying additional air to the combustion chamber.

8. A heater having a fuel magazine and a combustion chamber, a rocking grate having stationary bearings in the vicinity of the juncture of the fuel magazine and combustion chamber, a removable ash-pan normally disposed beneath the grate, and a handle pivoted thereto and extending through the fuel magazine; said handle being of inverted channel form and provided with suitably disposed perforations and adapted to supply additional draft to the combustion chamber.

9. A heater comprising an elongated hollow member having an upwardly inclined fuel magazine and a horizontal combustion chamber, and a bulged out portion at the juncture of the fuel magazine and combustion chamber, and a rocking grate detachably located in the bulged out portion.

10. A heater comprising an elongated 1101- low member having an upwardly inclined fuel magazine and a horizontal combustion chamber, and a bulged out portion at the juncture of the fuel magazine and combustion chamber, and a rocking grate detachably located in the bulged out portion, the lengthwise curvature of the bars of which corresponds to an evolute.

11. A heater comprising an elongated angular hollow member having an upwardly inclined fuel magazine and a horizontally disposed combustion chamber and bulged out both on top and at the bottom at the juncture of the fuel magazine and combus-- tion chamber, a rocking grate detachably located in the bulged out portion, and a removable ash-pan arranged beneath the grate and normally resting on the bottom of the bulged out portion.

12. A heater comprising an elongated angular hollow member having an upwardly inclined fuel magazine and a horizontally disposed combustion chamber and bulged out both on top and at the bottom at the juncture of the fuel magazine and combustion chamber, a rocking grate the lengthwise curvature of the bars of which describe an evolute and which is detachably located in the bulged out portion, and a removable ashpan arranged beneath the grate and normally resting on the bottom of the bulged out portion.

In witness whereof I have hereunto set my hand and seal this 30th day of January, 1915.

MAURICE A. HEMSING. he

Witnesses R. A. BENDIXEN, J. REED LANE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

